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I am trying to install zoo package using: 

install.packages("zoo")

I am getting the following error:

package ‘zoo’ successfully unpacked and MD5 sums checked

Warning in install.packages : cannot remove prior installation of package ‘zoo’

The downloaded binary packages are in C:\Users\user\AppData\Local\Temp\Rtmpaa1iAI\downloaded_packages

Any assistance out there. Newbie in R

DanY
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moses
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  • there is a prior installation of `zoo` package which it fails to remove. You can go to the folder where the library is installed (`.libPaths()`), and manually remove it – shaojl7 Sep 02 '17 at 09:48
  • This error can occur when multiple instances of rstudio are open. If you have more than one rstudio windows open, try closing all but one. – Ian Sep 02 '17 at 11:37
  • thankx alot. it worked perfectly on closing the other windows – moses Sep 04 '17 at 08:52

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